Your Leading Construction Machinery Parts Supplier
Shandong Chuangyou Construction Machinery Co., Ltd. is a high-tech manufacturer focused on core components for construction machinery, including Excavator Extension Arms, Excavator Grab Buckets, and Construction Machinery Parts. Backed by strict adherence to international industry standards, the company also supplies integrated solutions covering hydraulic systems, engine assemblies, and electrical components. With stable production capacity and consistent quality control, it supports OEM and bulk procurement needs for global B2B clients.
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6162-65-3501 Belt Tensioning WheelPart number 6162-65-3501 is a spring type belt tensioner assembly specifically designed for the Komatsu 6D170-2 engine, which includes a four groove pulley, shock absorber spring, and mounting bracket. By relying on springs to...view more
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10R-2312 Caterpillar Engine Oil Cooler10R-2312 is a Caterpillar original plate type oil cooler, suitable for Caterpillar heavy-duty diesel engines, including multi-layer heat dissipation cores and matching gaskets. By using coolant convection to cool the engine oil, the...view more
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Diesel Fuel Injection Pump 490-5709The Caterpillar C9.3 engine high-pressure common rail fuel pump with part number 490-5709 is the core component of the diesel engine fuel supply system. It relies on engine power to drive the internal plunger to pressurize low-pressure...view more
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6245-81-5361 Wiring Harness6245-81-5361 is the main wiring harness for Komatsu large construction machinery engines, suitable for PC1250-7, D375A-5 and other models. It uses wear-resistant braided sleeves and waterproof joints to adapt to harsh working conditions...view more
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707-77-16020 Oil Seal707-77-16020 is the original NOK dust seal of Komatsu excavator, model BA0902-E0, with a set of 3 pieces and a metal skeleton rubber structure. Function: Block dust and sediment from entering the oil cylinder, prevent hydraulic oil...view more
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800306882 Transfer Case AssemblyThe 800306882 transfer case assembly is a specialized power distribution transmission component for large excavators. After receiving engine power, it is divided into three outputs to distribute torque to various hydraulic pumps,...view more
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803009830 Kawasaki K3V280SH Main PumpThe part number 803009830 Kawasaki K3V280SH is a Kawasaki dual variable plunger hydraulic main pump suitable for large excavators, which is the core hydraulic component of the entire machine. Function: Convert the mechanical energy of...view more
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547-9727 Hydraulic Motor547-9727 Caterpillar original rotary hydraulic motor, suitable for Caterpillar 390F and 395 large excavators, is the core hydraulic component for equipment rotary. Convert hydraulic oil pressure into high torque rotational power, drive...view more
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272-2290 GP - Fuel Injection Pump AssemblyThe 272-2290 GP fuel injection pump assembly is compatible with Caterpillar C4.4 and 3054C diesel engines and is a core component of the fuel system for construction machinery engines. Function: Pressurize diesel, accurately control...view more
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14Z-15-00012 Transmission14Z-15-00012 is a specialized hydraulic transmission assembly for the Komatsu D65PX-12 bulldozer, which is the core component of the walking transmission. It transmits engine power, switches high and low speeds, advance and retreat...view more
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228-3638 Hydraulic Fan Piston Pump228-3638 is a hydraulic fan plunger pump that is compatible with the Carter 988H wheel loader and is a core component of the equipment cooling system. It outputs controllable hydraulic oil to drive the cooling fan, which can...view more
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708-2H-00453 Hydraulic Pump708-2H-00453 is the main hydraulic plunger pump compatible with Komatsu PC450-7 and PC450-8 excavators, and is the hydraulic core component of the entire machine. It converts the mechanical energy of the engine into high-pressure...view more
Why Choose Us?
Advanced Equipment
Our facility is equipped with CNC cutting machines, welding robots, forging equipment, and dedicated hydraulic testing systems. From structural parts to final assemblies, we achieve standardized production across the entire process.
Quality Control
With precision machining, automated welding, and testing equipment, we follow structured quality control procedures to ensure consistent performance under demanding working conditions.
Manufacturing Capacity
We combine R&D, production, and sales within one coordinated system, ensuring stable quality and efficient order handling. This helps buyers simplify sourcing and maintain a reliable supply chain.
Broad Market
Our products are sold in key engineering regions across East China, North China, and South China, and are also exported to overseas markets in Southeast Asia, the Middle East, and Africa.
Common Types of Construction Machinery Parts
Excavator Boom Hydraulic Cylinder
Our boom hydraulic cylinders are engineered to match OEM specifications for Komatsu excavators (e.g., PC200-7/8).
Excavator Hydraulic Rotating Log Grapple
This excavator hydraulic rotating grapple is an engineering machinery attachment launched, featuring hydraulic drive and 360° rotation.
Excavator Trommel Screen
The excavator trommel screen uses hydraulic power to rotate the drum for material classification and screening, and is widely used in engineering construction, mining, river management, and other scenarios.
Excavator Clamshell Grab Bucket
The excavator clamshell grab bucket features a double-jaw opening and closing structure design, primarily used for grabbing sand, gravel, coal, sludge, bulk materials, and block materials.
Excavator Connecting Rod Assembly
The excavator connecting rod assembly is used to connect the bucket, bucket arm, and boom cylinder, enabling precise transmission of movements for digging, lifting, and unloading the bucket, and is suitable for small to medium-sized excavators.
Excavator 35-type Hydraulic Breaker
The Excavator 35-type hydraulic breaker is compatible with 1-3 ton mini excavators and skid steer loaders, and is primarily used for precise breaking operations in small construction scenarios, making it a core piece of equipment for confined space construction.
Specifications of Construction Machinery Parts
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Item |
Specification |
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Product Category |
Excavator Buckets / Grab Buckets / Attachments |
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Applicable Machine |
Excavators / Loaders |
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Machine Range |
1 – 50 Ton |
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Bucket Capacity |
0.1 – 4.0 m³ |
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Width |
200 – 1500 mm |
|
Material |
Q345B / NM400 / Hardox |
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Bucket Type |
GP / Heavy Duty / Rock / Trenching |
|
Teeth System |
Standard / Heavy Duty Teeth |
|
Spare Parts |
Teeth / Adapter / Side Cutter / Protector |
|
Manufacturing Process |
Welding / Heat Treatment |
|
Surface Treatment |
Painting / Anti-corrosion |
|
Compatibility |
CAT / Komatsu / Hitachi / Volvo / Doosan |
|
Certification |
ISO9001 |
|
Customization |
OEM / ODM Available |
Benefitsof Construction Machinery Parts

Speed and Efficiency
Modern equipment significantly reduces the time required for each phase of construction. What took weeks earlier can now be done in days — without compromising on quality.

Precision and Accuracy
Construction machines are designed for accuracy. From leveling the ground to measuring exact concrete ratios, machinery ensures every step is executed perfectly — minimizing human error.

Cost-Effective Construction
Though machines require investment, they save labor cost, time, and material wastage — making construction more economical in the long run.

Safety and Reliability
Modern machines are equipped with advanced safety features, reducing on-site accidents. They handle dangerous and heavy-duty tasks that would otherwise risk workers’ safety.
Application Areas of Construction Machinery Parts

OEM/ODM Solutions
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Size & Dimensions |
Width, capacity, and overall structure |
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Material |
Q345B / NM400 / Hardox |
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Bucket Type |
GP / Heavy Duty / Rock / Trenching |
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Machine Fit |
Pin size and linkage adjustment |
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Wear Parts |
Teeth, adapters, side cutters |
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Branding |
Logo, color, and marking |
Ordering Process
6-standardized and easy steps from getting a quote to shipment.
Get a Quote
Please request a quote through our website and ask for customization.
Request Sample
Please request samples in advance to gain a comprehensive understanding of the product's materials, printing quality, and features prior to placing bulk orders.
Place Your Order
Place an order of your liking after selecting your preferred shipping option.
Start Production
Production will start after design approval; the production takes about 3-4 weeks.
Quality Inspection
After complete production, the products undergo quality testing.
Shipping
The order is ready to take off to your place. Once it is shipped out we would let you know the tracking info.
Our Service Advantages
Pre-Sales Support
Our team provides one-on-one communication to understand your project needs and recommend suitable products, specifications, and application solutions for efficient selection.
In-Sales Support
We track order progress and coordinate production and delivery to ensure timely shipment, while offering basic installation and usage guidance.
After-Sales Support
We offer responsive support with a 24-hour response time, including technical assistance, parts supply, and warranty service to help ensure smooth operation.
Payment Terms
T.T with 30% downpayment, 70%before shipment.
Paypal or West Union also accept.
Packaging and Shipping

FAQ
As one of the leading construction machinery parts manufacturers and suppliers in China, we offer a wide range of products with superior quality. Please rest assured to buy high-grade construction machinery parts made in China here from our factory. Contact us for more details.
Multi tine Grapple, Plum Blossom Grab, Loader Hydraulic Pump